debugging empty loop elimination that adversely impacts wave ops

pow2clk · Dec 24, 2023 · f0cec2f · f0cec2f
1 parent a743e97
commit f0cec2f
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diff --git a/lib/Transforms/Scalar/DxilEraseDeadRegion.cpp b/lib/Transforms/Scalar/DxilEraseDeadRegion.cpp
@@ -117,6 +117,7 @@ struct DxilEraseDeadRegion : public FunctionPass {
     assert(Region.count(
         BB)); // Region must be a complete region that contains the block.
 
+    //return false;
     auto FindIt = m_SafeBlocks.find(BB);
     if (FindIt != m_SafeBlocks.end()) {
       return FindIt->second;

diff --git a/utils/hct/gen_intrin_main.txt b/utils/hct/gen_intrin_main.txt
@@ -359,7 +359,7 @@ void [[]] SetMeshOutputCounts(in uint numVertices, in uint numPrimitives);
 void [[]] DispatchMesh(in uint threadGroupCountX, in uint threadGroupCountY, in uint threadGroupCountZ, in udt meshPayload);
 
 // Return true if the current lane is a helper lane
-bool [[ro]] IsHelperLane();
+bool [[ro,wv]] IsHelperLane();
 
 // HL Op for allocating ray query object that default constructor uses
 uint [[hidden]] AllocateRayQuery(in uint flags);